Permutation lock



June 30, 1925. 1,544,424

P. L. BERRY PEPMUTATION 'Locx Filed June so S1924 I J2 i HIIIIINII 18,7,

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A TTORNE Y.

Patented June 30, 1925. l '15' umreo STAI-Es PATENT oFFIcE.. n f

PERMUTATON LOCK. 'Y

i' Application filed .Tune 30, 1924. Serial 119.723,33@-

1 To all whom t may @officer/h,

' a specilication.

Be it known that I, lnmnisiv L. BERRY, a citizen of the United States, residing at Water Valley, in 'the county of Yalobusha and State lof Mississippi, have invented cerf tain new and Useful' Improvements inv Permutation Locks', of which the Jfollowing is This invention relates to permutation door locks7 and has for one ot its objects to improve'the construction and increase the eff flciency and utility of devices of this char? acter. 4 f

Another object of the invention is to provide a device of this character including a lock bolt, a latch bolt operative independently of the lock bolt and maintained nor'- mally in open position by a gravity oper.- ated element, and a System of tumblers adapted to control a vbolt releasing and locking device. L

Y With these and other objects in view the -invention consistsin certain novelfeatures ot construction as lhereinafter shown. and described and then specifically pointed out in the claims, and in the drawings illustrative of the preferred embodiment of the inven- Figures 1 and 2 are side elevations of the improved vlock'from the front and rear.

Figure 3 is: an elevation ofthe improved lock with casing face plate removed.

Figure 4 is a transverse sectionV onthe line 4-4'of FigureB 'with' both the frontend vrear face vplates attached.

f Figure=v5 is a'detail, partly in section, illustrating the operation.

Figures 6, 7 andS are. detached v'side of the tumbler members. Y

Figure 9 isa side view'detached, of the slotted coupling member between the tumblers'and the lock bolt. Y

Figure 10 4is a plan viewof the lock bolt and the releasing slide. y;

The improved'lock 'comprises an oblong casingV formed with enclosing vupper and lower walls 10 and 11, end walls 1Qand 13, detachable .front4 face member 14 and detachable rear face member 15. f

The interior of the casing is provided with spaced partitions 16 and 17 which unite the ends 14 and 15, thus forming the interior of the casing into three oblong compartments which, for the purpose of this description views `will be referred to as the upper, the lower,

and the intermediate compartments.

Slidably disposed in the lower `@Ulldart--v ment is a lock bolt comprising ahead por tion 18, corresponding in thickness to the distance'between thert'ace plates 14 and V15, and a shank or stock portion 19, corresponde ng'n thcknessto about, One half O-.fithe distence between the face members, as indicated in Figures 4 and 10. g n.

rlhe head portion 18 ofthe bolt completely fills the space between the bottom 11V andthe partition 17 of the easing, while the shank portion 19 fills about one half of this area, and slidable within they lower compartment betweensthe shank 19 and the vside member l5, is an operating block or slide `20 lia-vingY reversely inclined upper faces 21 and 2,2k

Slida-bly disposed in the upper` compartment are a plurality of yflat plates; three for illustration, and denoted by the characters the tumblers 23,24 and 25 and constituting of the improved look.

' The tumblers are `formed respectively with l longitudinal bars 26, V27 and 28, and notches 29, 3Q and 31 in their lower edges, the bars' and notches not being in alinement or registering when the tuinblers are snperposed and with theirends coinciding. y

The bars 26, 27 and 128.. are each provided Awith a plurality of spaced apertures 32m one of which pins 33 are set and project' through slots 36 in the acemember 14 and corresponding slots 36 in the face member Each ofthe tumblers is'thus provided with an operating pijnlprojecting.. beyond .the .outeri faces of the yfece plates S0 that the -tumblers can f be independently operated 'from either side, and by lproviding a.. plurality 'ofthe apertures' in each ber, for the pins the combi-nationcan be Changed, as required, as hereafter explained.

' The face members 14 and lare provided i withfplates 3,6 having slots"I 36" registering with like slots in 'theplates -14and 15, the plates 36 being provided with graduations lprovided withatransverse recess 39 having- 'indicated at .Stigte-deniite the required relaits ends at right angles tothe longitudinal axis' of the bolt, andextending through the slide member 20 is a pin 4Q, the latter extending through the recess 89 of the bolt 18'-19 and likewise through'slots 41 in the ace members 14 and 15 as indicated in Figures 1 and 2. By this means the slide member 20 may be operated from either side of the lock Within the range of the recess 39.

' Disposed for movement. betvveen-,guidegribs 42 Within the intermediate compartment is a slotted coupling member 43,v the latterl projecting atthe ends through guide slots in the partitions k16 and 17 `At its 'upper end the member 43 enters the recesses or seats 29,130 and 31 ofthe tumblers When the latter are adjusted to locate the seats 'in transverse alinement.-

'f The Shank portion 19 of the 10er bolus ,Y having a shortV arm 47-y anda long `ar1n48, the latter extending throughV the slotipfthe member 43 and `provided With va Weigh-t: 49 at'iitsfreeend.A -f

' 1 "siifdabiyaieposed mh@linfemediafecm- Vfpartmentand' operative through a guide slot in the'en'd member 1120ithe-casing, is a latch Ibolt"50, the latter' pivote'd at 51 at the Lelbow 'of the le-ver 47- 48. 1

lMounted for" rotation through 'the-face fknob inthe `usual' manner, this movementl 'seat54'in the latchv bolt '50.

v rBythi's arrangement the Weight49 exerts `its force to holdlthe'fmember 4 3 v-ie'ldably 'in *itsV downward `psitio'n andthe latch' bolt `5O yieldablyin projectedposition.'\.` I

'When the `latch bolt is'to be `ivithdruvn, 4the spindle 52 is rotated by operating its causing the arm 53 toactuate the boltto i' swing/the lever 47j-48 YonV its pivot against the r'eistance` of the yWeight 49,*-the portion 48 of' the 'lever movingupwardly inthe Vslot vof themember- 43 buti'vithout affecting the latter. "The latch boltfc'an thus'be actuated regardless 'of the' positions ofthe tumblers or the "lock bolt, While at'the Sametime the VWeighted lever performsthe two fold `function' of a' means Vfor holdingl the latch bolt yieldably in projected j position andvalso holdingrthe member "yieldablyin its klovver Vdifferent combinations may be eiected, as

Will be obvious. j f i Y 'The location of 'in thev tumblers Will vary With each' lock `andl the pins 33 Willhbe set in the pertorationsfin Y the tumblers to correspond with the tumbler recesses, and by varying the relative location position;- v ,Y l i therecesse's 29, 30`and 31 of thepins and recessesa large number of To 'operate the deviceone ofthe face plates is removed kand* they -tumblers adjusted to locate the three "recesses'29, 30 and'31rin alinement, or inl position to receivegthe 'memV Y' ber 43 When elevated. Thepins` 33l are then located in the apertures opposite certain .of

1 the graduations, onthe.,pl ates, for instance 3, 5 and 6 as shovv'n in Figures land 2. The

Y' face plate'14 or 15, as the case may be, is then restored to the casing, and the pins 33 'ac- -tuated `to move the tumblers tothe right or left to change the relativelocatlon'of the recesses in the tumbler, orto Abreakup theV alinedposition.

Then the onlyvvayv which the recesses canf'be'set in alined' positiony islto setfth'e pins 33 opposite theselectedgraduations, for v V` instance "3, 5 and -V61this 'combinationY being known only tol persons authorized Ito open the lock, all others Willl be unable tofopen the lock.`

lf thelock bolt 18V-19 isin open position j asshoWn-in full lines in .Figure 3, the memberY 43` will enter the y`seat45, andthuslock the bolt in open position, and if the boltV is infclosed lposi-tion as indicatedV bydotted lines','the-memberV 43 will enterf the seat 44" and lockfthebolt in closedpos'ition,andthe bolt can "bef-released from either ,openor closed position only fby adjusting ,the tumblers toflocate 'the` recesses 29, 30 and 31 in transversealinement,was.above noted.` i

. When kthe tumblers are adjustedfto -bring Vmein-recessesy in transverse alinementby *setting the `pins 33 opposite theproper graduations, asabove noted, then the pm 40` may be. movedto therightor left, asthecase may be, 'and Veausethe linclinedy face 21` or"22;to elevate the `m'emberfl intojthe aline'd recesses 29, k3()v and 31v against the resistance "of lthe Weighty49, and thus release the y106k bolt, and When'thepin 4() reachestheend of the recess 39it willpick-'upfthe bolt and move it eithery intofopen orclosed positiomas will The improved devicefis simple in construe-g tion, can be'inexpensively: manufactured, of-V any required size, and v off-any suitablematerial, and adaptedffor'zuse lWhereverazlock` of the permutationror combinationfclass is f required.

The preferred inven- VAtion fist disclosed -in thedra'wingsf and. set forth in the .specication-,j'but' 'itLW'ill 'bexun derstoo'd that! modifcatibns i Within Ithe 'scope of the claimed inventionim'ayafbe. madel in the construction Without'jdeparting from 'the 5 :principle zof 'the `invention "orlsacrificing any of its advantages. f v- 4Having thus `described the invention what is claimed as new istf---rk f A j 51. 'Al lock ofthe: classldescribed, compris- `ing ani-enclosingcasingfhaving a plurality of graduations,:'a; pluralityjof superp'osed tumblermembersfwithini said casingv and yeaclrprovided' witha seat in one edge, operating pins extending'respectively-from said tumblersA andi Vcofacting. ywith said 4fgradulao nsf Y ations, a lock bolt movable in said casing and having spaced recesses in one part and an elongated cavity in another part, a coupling member between said tumblers and lock bolt and adapted to be alternately engaged With the seats of the tumblers and the recesses of the bolt, a slide Within the casing and hav ing reversely inclined edges adapted to engage the coupling member, and an operating pin extending from the slide and through the cavity of the bolt and adapted to engage the ends thereof and move the bolt into projected or Withdrawn position.

2. A lock of the class described, comprising an enclosing casing having a plurality of graduations, a plurality of superposed tumbler members Within said casing and each provided With a seat in one edge, operating pins extending respectively from said tumblers and co-acting with said graduations, a lock bolt movable in said casing and having spaced recesses in one part and an elongated cavity in another part, a coupling member longitudinally slotted and movably disposed bet-Ween said tumblers and lock bolt and adapted to be alternately engaged with the seats of the tumblers and the recesses of the bolt, means for actuating vthe coupling member, an L-shaped lever member pivoted at one end to the casing and Weighted at the other end and passing through the slot of the coupling member, a latch bolt slidable in the casing and pivotally connected to the lever, means for actuating the latch bolt.

In testimony whereof, I affix my signature hereto. v

LERRIN L. BERRY. v 

